Bento4 MP4 SDK: Ap4TrexAtom.h Source File

Bento4 MP4 SDK

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Ap4TrexAtom.h

00001 /*****************************************************************
00002 |
00003 |    AP4 - trex Atoms 
00004 |
00005 |    Copyright 2002-2008 Axiomatic Systems, LLC
00006 |
00007 |
00008 |    This file is part of Bento4/AP4 (MP4 Atom Processing Library).
00009 |
00010 |    Unless you have obtained Bento4 under a difference license,
00011 |    this version of Bento4 is Bento4|GPL.
00012 |    Bento4|GPL is free software; you can redistribute it and/or modify
00013 |    it under the terms of the GNU General Public License as published by
00014 |    the Free Software Foundation; either version 2, or (at your option)
00015 |    any later version.
00016 |
00017 |    Bento4|GPL is distributed in the hope that it will be useful,
00018 |    but WITHOUT ANY WARRANTY; without even the implied warranty of
00019 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00020 |    GNU General Public License for more details.
00021 |
00022 |    You should have received a copy of the GNU General Public License
00023 |    along with Bento4|GPL; see the file COPYING.  If not, write to the
00024 |    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
00025 |    02111-1307, USA.
00026 |
00027  ****************************************************************/
00028 
00029 #ifndef _AP4_TREX_ATOM_H_
00030 #define _AP4_TREX_ATOM_H_
00031 
00032 /*----------------------------------------------------------------------
00033 |   includes
00034 +---------------------------------------------------------------------*/
00035 #include "Ap4List.h"
00036 #include "Ap4Atom.h"
00037 
00038 /*----------------------------------------------------------------------
00039 |   macros
00040 +---------------------------------------------------------------------*/
00041 #define AP4_TREX_SAMPLE_IS_DIFFERENCE_SAMPLE(_flags) ( (_flags)&
00042 
00043 /*----------------------------------------------------------------------
00044 |   AP4_TrexAtom
00045 +---------------------------------------------------------------------*/
00046 class AP4_TrexAtom : public AP4_Atom
00047 {
00048 public:
00049     AP4_IMPLEMENT_DYNAMIC_CAST_D(AP4_TrexAtom, AP4_Atom)
00050 
00051     // class methods
00052     static AP4_TrexAtom* Create(AP4_Size size, AP4_ByteStream& stream);
00053 
00054     // methods
00055     AP4_TrexAtom(AP4_UI32 track_id,
00056                  AP4_UI32 default_sample_description_index,
00057                  AP4_UI32 default_sample_duration,
00058                  AP4_UI32 default_sample_size,
00059                  AP4_UI32 default_sample_flags);
00060     virtual AP4_Result InspectFields(AP4_AtomInspector& inspector);
00061     virtual AP4_Result WriteFields(AP4_ByteStream& stream);
00062 
00063     // accessors
00064     AP4_UI32 GetTrackId()                       { return m_TrackId;                       }
00065     AP4_UI32 GetDefaultSampleDescriptionIndex() { return m_DefaultSampleDescriptionIndex; }
00066     AP4_UI32 GetDefaultSampleDuration()         { return m_DefaultSampleDuration;         }
00067     AP4_UI32 GetDefaultSampleSize()             { return m_DefaultSampleSize;             }
00068     AP4_UI32 GetDefaultSampleFlags()            { return m_DefaultSampleFlags;            }
00069 
00070 private:
00071     // methods
00072     AP4_TrexAtom(AP4_UI32        size, 
00073                  AP4_UI32        version,
00074                  AP4_UI32        flags,
00075                  AP4_ByteStream& stream); 
00076 
00077     // members
00078     AP4_UI32 m_TrackId; 
00079     AP4_UI32 m_DefaultSampleDescriptionIndex; 
00080     AP4_UI32 m_DefaultSampleDuration; 
00081     AP4_UI32 m_DefaultSampleSize; 
00082     AP4_UI32 m_DefaultSampleFlags; 
00083 };
00084 
00085 #endif // _AP4_TREX_ATOM_H_
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